Journal-bearing liner.



' Liners and the Like, of which the following is cording to one construction, the skeleton iron block a partial weakening, due, 1st, to

its way underneath the UNITED STATES MAX WAGNER, OF. WI

ESBADEN, GERMANY.

JOURNAL-BEARING LINER.

No. 890,736. Specification of Letters Patent. Patented June 16, 1908.

Application filed October 12, 1906. Serial No. 338,545.

able.

To all whom it may concern: First, theholes for the rivets or screws,

Be it known that I, MAX WAGNER, manuwhich weakened the material of the cast iron facturer, and resident of 9 Uhlandstrasse, bearing block, are dispensed with, while the Wiesbaden, in the Kingdom of Prussia, Germore intimate union between the bearing man Empire, have inventednew and useful improvements Relating to Journal-Bearing a specification. 1

The present invention relates to liners for journal bearings, slide plates and the like wherein a resistant meta (such for instance as bronze, iron or steel) is employed to formarigid skeleton around which the soft metal is cast in such a manner that: the soft metal alone constitutes the bearing surface for the journal or the like. In these bearingsy acmay be combined or connected with a rigid outer bearing block or liner formed, for instance, of cast iron. This has been effected hitherto by riveting or screwing together the l skeleton and liner, a method which has the disadvantage of producing in the outer cast the holes for. the rivets or screws and the countersinking of said holes; and 2nd, to the longitudinal grooves which are required for the purpose of relieving the screws of strain in the case of bearing blocks carrying a heavy load. This method of connection has the further disadvantage that the drilling and countersinking of the holes, as also the cut l ting of the screw threads etc. necessitates the employment. of special machines. Moreover, I

' in those cases in which a perforated metal I plate has been used as the stiffening skeleton and has been designed to project beyond the soft i'netal at the bottom of the bearing in order to serve as su )port for the latter, in the outer bearing block, it was desirable that the skeleton plate shouldiit as closely as possible against the inner wall of the cast iron bearing block, so that, when the soft metal i was poured in, none of this metal should find erl'oratcd plate. In i order to achieve this our it was in most cases necessary to bore out or plane out the cast iron bearingblock, which entailed of course an illCi'P-l in the cost of manufacture. l

the present invention consists in effecting the connection of the skeleton with the outer r Ll iron iiner or hearing block by casting the m 's together, instead of by riveting or s z' 'hem together. i

the advantages which are attained by the nrw method of connection are very considerl block and the skeleton allows of the use of a bearing block having a less thickness of wall in proportion to a given load on the bearing. Further, all tooling and finishing of the inner surface of the bearing block, such as was necessary in many cases where the connection was made by means of screws or rivets, is dispensed witl With the new method of connection, the skeleton serves to strengthen-not only the soft metal, but also the body of the outer .bearing block. Consequently the journal may be made of greater diameter relatively to a given outside dimension of the/bearing block. In many cases cas f li ron may be used for the outer bearing block, in place of the relatively dearer cast steel.

The connection is preferabl i effected ll placing the skeleton in the mold, after havmg first stop ed up the greater number of the holes in tie plate (which is composed of wrought iron) with molders sand or by any other suitable means. Then, after the mold has been fastened together, the casting metal is poured in and penetrates into those holes which have not been stopped up, with the result that an intimate com'iection takes place between the cast iron bearing block and the inserted skeleton.

Instead of leaving some of the holes in the skeleton free to allow of the passage of the cast metal through them, all the holes may be filled with molders sand to a predetermined height, so that the cast mctatunay penetrate into all the holes.

The casting producednn this manner may, after having been cleaned, have the soft bean ing metal cast directly on to it.

lnsteadol' cast iron other metals such as cast steel, bronze or the like may be usen in the same manner for the outer bearing block.

The accompanying drawing illustrates the method of manufacturing one of the im proved bearing blocks, Fig. l showing the bearing during the casting operation in the moldyin section on line A-'-A of Fig. 2, while Fig. 2 is a plan view of the bearing after the skeleton has been secured by casting, and Fig. 3 is a cross section of the finished bearing lined with soft bearing metal.

1 is the underilask of the mold; 2 is the iron late 3 forming the skeleton above referre to. The holes in this plate are filled u) with molders sand with the exception ot a certain number of holes 4 which arel left vacant so that. the poured metal used for l the casting of the bearing block or line 5 mar enter said holes.

ti is the upper llask of the mold, which is tilled with molders sand 7 in the usual main 3 net: t 'lhe pat tern [or t he outer bearing is rammed l in and then removed before the casting of the l block 5. .\s indicated in the drawing, those portions of the :ast .metal which have entered the holes 4 will, in the finished hearing, l hold the skeleton It as it were by means of 1 rivets firmly to the outer bearing block 5. The soft bearing metal is then east on to the l concave side of the skeleton in any approved manner, and this soft metal 8 will, as shown i in Fig. 3, run into the, perforations of the l skeleton as far as they have not been tilled l l the projections formed in casting the liner I or supporting element 5. 'lhe use of skeletons as described, connected to an outer meniber by casting on to the same, is capable ol. use in all kinds of hearl ings, slide plates and built-in parts. Now what I claim and desire to secure by l Letters Patent is the following: l t. A machine element comprising a supporting element with integral projections extending from one of its faces, a perforated I skeleton in en 'agement with said lace, said i project-ions til ing the perforations of thei skeleton in part, and a soft metal layer eovl erin the side of the skeleton opposite to that l on which the supporting element is located, said layer of soft metal having integral projections extending toward the supporting element and into the perforations of the skeleton so far as they are not filled by the projections of the supporting element.

2. A machine element comprising a supporting element with integral [)IOJEUUUUS ext ending from one ol its hires. a pertorz'tted skeleton in engagement with said t'aee. said projections tilling the perforations of the skeleton 1n part, and a soft metal layer covering the side of the skeleton opposite to that on which the supporting element is located, said layer of soft metal having integral projections extending toward the supporting ele ment and into part of the perforations of the skeleton.

3. A machine element comprising a layer of soft metal having a continuous exposed surface adapted for engagement with the moving part, a supporting element having integral projections extending toward said layer of soft met al, and a perlorattal skeleton embedded between the said layer of soft metal and the supporting element, the perforations of said skeleton being tilled partly by the projections of the. supporting element and partly by the soft metal.

in testimony, that 1 claim the foregoing as my invention, ll have signed my name in presence ot two witnesses, this twent ninth day of September 1906.

MAX WAGNER. Witnesses:

Riemann "Leonie-inn,

)[onrrz liunwic GAnBLna 

